1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
#include <iostream>
#include <cstdio>
unsigned int tab[(1<<20)];

int main(){
	std::ios_base::sync_with_stdio(false);
	unsigned int n = 0, t = 0;
	std::cin>>n>>t;
	t = t % 2;
	int total = (1<<n);
	for(int i = 0 ; i < total; i++){
		tab[i] = 0;
		std::cin>>tab[i];
	}
	for(int i = 0; i < total; i++){
		std::cout<< tab[(t == 1 ? (total - i - 1) : i)]<<" ";
	}
	return 0;
}